29 results about "Land reclamation" patented technology

This invention relates to the field of soil sampling device technology, and more particularly to a mountable UAV soil sampling device for land reclamation. The device comprises an upper shell, a lower shell, a drilling assembly, and an air pump assembly. The upper shell is fixedly mounted on the top of the lower shell via a mounting buckle, which is then bolted to both the upper and lower shells. A bracket is fixedly mounted on the bottom of the lower shell. This invention, by installing an outer cylinder outside the guide cylinder, creates a double-layered cylindrical guiding structure. This structure ensures the stability of the drill bit sampling without affecting soil sample transmission. Furthermore, in conjunction with the air pump assembly, high-pressure airflow is used to backwash and clean the soil movement path of the drill bit, guide cylinder, and outer cylinder. This allows for the cleaning of the soil movement path during sampling point changes, significantly reducing the risk of cross-contamination between soil samples from different sampling points.

This application relates to an IoT-based intelligent land remediation monitoring method and system. The monitoring method includes: acquiring satellite remote sensing elevation data and historical soil composition data of the land area to be monitored; dividing the land area to be monitored into multiple grid units and assigning grid identifiers; deploying fixed soil sensor nodes and mobile drone nodes to generate a sensor network topology; collecting real-time soil parameters of each grid unit and performing noise filtering and anomaly detection to generate a soil composition dataset; inputting the soil composition dataset and historical soil composition data into a cloud-based prediction model to output a land degradation risk score and remediation strategy; controlling the execution equipment to perform land remediation operations and monitoring changes in soil parameters after execution in real time; updating the parameters of the cloud-based prediction model and optimizing the sensor network topology based on the deviation between the changes in soil parameters after execution and the expected values. This application improves agricultural production efficiency and soil health.

The application provides a method for preparing regenerated soil by using phosphogypsum, which takes bulk solid waste phosphogypsum as raw material, and through harmless treatment, microbial alternate fermentation and trace element compound treatment, a regenerated soil with high fertility, stable structure and strong water and fertilizer retention capacity is obtained, which can be directly used for crop planting. The method can promote the plant absorption of Ca, S, P and other elements in the phosphogypsum, and realize the land utilization of all components of the phosphogypsum. In addition, through the formation of organic-inorganic complex by the compounding fermentation technology, the complex can not only promote the formation of soil aggregate structure, but also improve the biological effectiveness of trace elements and the stability of organic matter in the soil, and then build a high-quality regenerated soil with strong water retention and air permeability and long-lasting fertilizer efficiency. The application can not only effectively solve the problem of phosphogypsum storage, but also apply the prepared regenerated soil to farmland improvement, land reclamation and crop planting, and realize the goal of turning waste into treasure.

The application belongs to the technical field of comprehensive management of saline-alkali land and circular agriculture, and particularly relates to a multi-stage circular agriculture system and method for saline-alkali land based on multi-stage resource utilization of saline-alkali water, which comprises the following steps: through the technical chain of terrace land reclamation, seawater-like regulation, reverse osmosis desalination, planting and breeding coupling and tail water circulation, efficient cyclic utilization of natural resources in the saline-alkali area is realized. The method mainly comprises the following steps: after the saline-alkali water in the saline-alkali area is detected, the saline-alkali water is extracted for seawater-like regulation, the regulated saline-alkali water is obtained, and then the saline-alkali water is desalinated through a reverse osmosis system, and fresh water and seawater-like water are obtained, which are used for crop planting and aquatic product breeding, respectively, and the breeding tail water is recycled after solid-liquid separation. The system and method have the advantages that the system does not need external supply of fresh water, is self-contained, achieves win-win of ecological benefit, social benefit and economic benefit, realizes green and sustainable development, and has universal popularization value for comprehensive development and utilization of saline-alkali land.

The utility model relates to land reclamation soil and stone separation technical field, a land reclamation soil and stone separation device, including sieve stone bucket, the tail of sieve stone bucket rotatoryly provided with gather stone bucket, the inner wall of gather stone bucket's tail end is provided with the protection mechanism that prevents stone block from hitting damage conveniently, the both sides of gather stone bucket tail end inner wall are fixedly connected with side fixed frame, the inside of side fixed frame is inserted with the protection plate, the fixed hole is opened in side fixed frame, protection plate and buffer pad. In this land reclamation soil and stone separation device, through, the second hinged block of gather stone bucket side wall is connected with the connecting plate and first hinged block of the upper surface setting of undercarriage through telescopic arm, in order to utilize telescopic arm control gather stone bucket overturning and carry out unloading stone processing, and the both sides of gather stone bucket tail end inner wall are provided with side fixed frame, and the protection plate and buffer pad are inserted in side fixed frame, in order to carry out protection to the stone block that flies into gather stone bucket.

Abstract A coal-based solid waste eco-restoration material and preparation method are provided. The preparation method includes: mixing and placing calcium oleate, sodium silicate, polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; seeding the inorganic nano-seed crystal to form a cementitious material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; uniformly mixing the prepared porous sandy loam matrix, coal slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. Compared with the traditional aluminum powder chemical foaming and strong acid foaming, the physical foaming technology adopted in the present disclosure improves the safety of operation while reducing the cost, and is convenient for standardized production. According to the activation of bacteria-fungi composite microbial agent, the nutrient elements in eco-restoration materials can be fully released. The eco-restoration material can be applied to the fields of mine soil restoration, land reclamation and other environmental restoration. FIG. 1 Abstract A coal-based solid waste eco-restoration material and preparation method are provided. The preparation method includes: mixing and placing calcium oleate, sodium silicate, polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; seeding the inorganic nano-seed crystal to form a cementitious material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; uniformly mixing the prepared porous sandy loam matrix, coal slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. Compared with the traditional aluminum powder chemical foaming and strong acid foaming, the physical foaming technology adopted in the present disclosure improves the safety of operation while reducing the cost, and is convenient for standardized production. According to the activation of bacteria-fungi composite microbial agent, the nutrient elements in eco-restoration materials can be fully released. The eco-restoration material can be applied to the fields of mine soil restoration, land reclamation and other environmental restoration. Mixing and placing calcium oleate, sodium silicate, S10 polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; Seeding the inorganic nano-seed crystal to form a cementitious S20 material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; Uniformly mixing the prepared porous sandy loam matrix, coal S30 slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. FIG. 1 20 25 20 15 77 04 M ar 2 02 5 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 a n d o t h e r e n v i r o n m e n t a l r e s t o r a t i o n . S 1 0 S 2 0 S 3 0 F I G . 1 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 a n d o t h e r e n v i r o n m e n t a l r e s t o r a t i o n . S 1 0 S 2 0 S 3 0 F I G . 1 1 / 2 FIG. 1 FIG. 2 1 / 2 Mixing and placing calcium oleate, sodium silicate, S10polyvinylpyrrolidone, oleylamine, anhydrous ethanol, and water in a hydrothermal reactor, heating at a constant temperature, centrifuging, and washing to collect inorganic nano-seed crystal; Seeding the inorganic nano-seed crystal to form a cementitious S20 material; mixing coal gangue powder with the cementitious material, mineral activator, and physical pore-forming foam, then curing, crushing, and screening to prepare a porous sandy loam matrix; Uniformly mixing the prepared porous sandy loam matrix, coal S30 slime, and composite microbial agent, and then fermenting and maturing to obtain the coal-based solid waste eco-restoration material. FIG. 1 Inorganic nano-seed crystal Hydration products 5 um FIG. 2 20 25 20 15 77 04 M ar 2 02 5 S 1 0 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 S 2 0 S 3 0 F I G . 2 S 1 0 2 0 2 5 2 0 1 5 7 7 0 4 M a r 2 0 2 5 S 2 0 S 3 0 F I G . 2

1. Name of the product in this design: Pioneer Machine. 2. Purpose of this design: for land reclamation work in agriculture and forestry. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention discloses a method for preloading soil and controlling the stability of dikes in soft soil foundations during land reclamation, belonging to the field of soft soil foundation treatment technology. Addressing the technical problems of drainage boards easily twisting and breaking, poor reinforcement effects due to unloading rebound, and dike slope instability in newly reclaimed ultra-soft soil foundations, the method includes: sequentially performing a first vacuum preloading followed by staged soil surcharge preloading to control settlement and displacement rates; stopping the vacuum and removing all soil surcharge after the consolidation degree meets the standard; installing a second set of drainage boards on the unloaded foundation surface, arranged in a staggered pattern with the first set; repaving the drainage system and initiating a second vacuum preloading without soil surcharge until the settlement rate, consolidation degree, and vane shear strength meet design requirements. This invention eliminates the uneven defects caused by drainage board failure during the first reinforcement through secondary reinforcement with inserting plates, effectively improving the overall shear strength and stability of the foundation. It is mainly used for deep reinforcement of soft soil foundations during land reclamation and for dike slope stability control.

This invention relates to the field of heavy metal soil remediation technology, specifically to a physical washing method for removing heavy metals from coal gangue and its application in building materials and improved soil. The method includes the following steps: Step S1: Crushing and particle size classification of the raw coal gangue. This invention utilizes a combined physical washing process of "gravity air separation + jigging + hydrocyclone," combined with particle size classification and surface modification technology, to effectively separate and remove heavy metals from the coal gangue at its source. Simultaneously, the separated heavy metal-rich components are subjected to targeted treatment. Surface-activated coal gangue is further used to prepare environmentally friendly non-fired bricks and microbial organic improved soil. The lead leaching toxicity removal rate of the treated coal gangue is improved, allowing it to be directly used for ditch filling and land reclamation without seepage prevention treatment. This achieves source elimination of heavy metals and full-scale resource utilization of solid waste, demonstrating broad application prospects.

This invention relates to an ecological island construction method for land reclamation, comprising, from bottom to top, a reef base layer, a perforated rockfill layer, an island surface leveling layer, and a subsequently constructed concrete island surface. The reef base layer is laid on the reef bottom and is composed of artificial pebbles dumped into the sea. The perforated rockfill layer is laid on top of the reef base layer and is formed by the natural sinking and accumulation of reclamation units. The reclamation units are artificial pebbles with through holes in the center. The island surface leveling layer is laid on top of the perforated rockfill layer and is composed of artificial pebbles bonded together with concrete adhesive, filling the gaps in the lower perforated rockfill layer and providing a sealed space for the subsequent concrete island surface pouring. The subsequent concrete island surface is constructed by pouring concrete onto the surface of the island surface leveling layer, allowing it to penetrate the lower island surface leveling layer, mix with the graded artificial pebbles within the layer, and solidify to form a reclaimed island surface that can be exposed above the sea surface. This invention combines load-bearing and ecological functions, reducing the damage to the nearshore reef ecosystem caused by sand blowing, while also improving the flexibility of land reclamation construction.

The application discloses a method for constructing an internal dumping site based on a fly ash-based cementing material carbon dioxide storage, and utilizes the cementing properties of fly ash of a pit mouth coal-fired power plant to prepare a fly ash-based cementing material with super high content, and utilizes the high-strength fly ash-based cementing material to construct a carbon dioxide storage, and utilizes a cement-free low-strength fly ash-based cementing material to backfill an open-pit mine pit, so that the resource utilization and efficient collaborative disposal of fly ash solid waste are realized; the carbon dioxide storage is constructed in the internal dumping site space, the open-pit mining space is effectively utilized, and the problem of insufficient material for land reclamation backfilling in the late mining stage is solved; the carbon dioxide storage reinforced by the anchor rod prestress has high strength and large internal space, the mine pit bottom plate impermeable layer and the overlying clay cover layer increase the airtightness, and the safe and efficient large-scale storage of critical state carbon dioxide is realized; the fly ash-based cementing material can mineralize carbon dioxide in a humid environment, increases the carbon dioxide storage amount, and improves the carbon dioxide storage strength and airtightness.

The present application relates to the technical field of image detection, in particular to a land reclamation remote monitoring visual early warning system, which can realize the following steps through the mutual cooperation between multiple modules: obtaining the silt accumulation image and the landing splashing image of the current land reclamation in the current to-be-adjusted period, so as to identify the target landing area and the aerial particle group area; determining the current reclamation deviation degree according to the target elevation data corresponding to the center point of the target landing area and the difference between the target landing area and the preset expected landing center, as well as the preset design expected elevation; determining the current particle unevenness degree according to the distribution of the radius of the aerial particle group area; thus determining the current comprehensive risk quantization value; and performing land reclamation remote monitoring visual early warning according to the current comprehensive risk quantization value. The present application realizes the real-time monitoring of land reclamation by detecting the silt accumulation image and the landing splashing image, and improves the timeliness of land reclamation monitoring.

This invention discloses a method and apparatus for evaluating arable land potential by integrating multi-factor and multi-source remote sensing. The method includes identifying potential patches in a target area based on constraint factors, acquiring remote sensing images of the potential patches and extracting multi-dimensional features, outputting a land cover classification map and obtaining the average cost per acre for land reclamation based on an improved XGBoost model, and obtaining the final evaluation result of the potential patches based on a basic evaluation system comprising three dimensions and seven indicators, as well as a modified evaluation system integrating arable land, ecological, and historical factors. This method can then be applied to arable land protection and utilization practices. This invention constructs a multi-dimensional integrated arable land potential identification and evaluation system, addressing the problems of lack of planning and policy adaptability and economic cost considerations, and achieving automated identification and evaluation of arable land potential. Based on multi-source, multi-temporal, and multispectral remote sensing images and an improved XGBoost model, it improves the accuracy of land cover identification and the scientific quantification of economic costs, overcoming the bottlenecks of single data source, single-temporal analysis, and low efficiency of manual evaluation.

The utility model discloses a kind of ditch reinforcing device for land reclamation, it is related to land reclamation apparatus technical field, including main frame, connecting lug plate and sliding frame, the inside of the sliding frame is provided with through slot, the inside of the through slot is fixedly installed with two slide rods, the beneficial effects of the utility model are as follows: by the setting of slide rod, sliding plate, reset spring, compression roller, guide rod, limiting rod, connecting plate, pressing plate and connecting rod, when reinforcing ditch, after fixed connection by connecting lug plate and excavator, by excavator arm drive device down pressure, two compression rollers can be contacted and compacted with ditch side wall simultaneously, after compression roller and ditch side wall contact, according to the inclination of side wall, sliding plate will slide outside reset spring, when sliding plate slides, pressing plate can be pushed down by connecting rod, so as to compact and reinforce the bottom of ditch by pressing plate, so as to reinforce the bottom and side wall of ditch, effectively improve the overall work efficiency.

The utility model relates to the field of hydraulic structures, namely to devices for regulating and shutting off water flows in irrigation systems, canals, water management facilities and drainage systems. The technical result of using the proposed utility model consists of increasing the tightness of the water flow shut-off, increasing the operational reliability and durability of the structure, reducing water loss, providing automated and remote control, and implementing intelligent monitoring of the device's operating parameters. This technical result is achieved by the rotary valve comprising a frame, a gate panel, a lifting mechanism, and sealing elements. The lifting mechanism is an electric drive comprising an electric motor with a gearbox, which is movably connected to the gate panel. The sealing elements are a combination of a rubber seal and a foamed silicone seal. The gate is additionally equipped with a control system and a video surveillance system, providing automated and remote control and monitoring of the device's operation in real time. This utility model can be used in agriculture, land reclamation, and water resource management systems.

This invention discloses a composite roadbed structure for shallow marine reclamation areas, relating to the field of land reclamation construction technology, aiming to solve the technical challenges of uneven settlement and reflective cracking in soft soil foundations in these areas. The structure provides rigid support through a pile foundation system embedded in the soft mud layer and innovatively employs support components with elastic restoring functions. Combined with a double-layer geogrid reinforcement and isolation system and a layered transition reinforcement layer, it forms a synergistic load-bearing system that combines rigidity and flexibility. This system effectively disperses loads, absorbs and reduces stress caused by differential settlement, and automatically adjusts its restoring function, thereby significantly suppressing the generation of reflective cracks in the pavement. This invention possesses excellent stability, adaptability, and durability, making it particularly suitable for rapid and efficient road infrastructure construction in shallow marine reclamation areas.

The invention relates to the field of agriculture and can be used in peasant farms, on the territory of which small- and medium-contour saline mixed soda and soda-sulphate heavy loamy solonetzic soils have become widespread. The method includes an early spring soil salt survey of the area to determine the state of solonetzic and saline soils, the development of a land reclamation strategy, the introduction of a calculated dose of sulfuric acid in the form of a solution, their incorporation to the depth of the solonetzic horizon, and the cultivation of alfalfa. This method allows for the production of up to 200 centners of fresh alfalfa per hectare per year on barren (due to soda salinity and alkalinity, there is virtually no vegetation) saline mixed soda and soda-sulfate solonetzic soils after their reclamation with a 1% sulfuric acid solution. The method improves the socioeconomic and environmental conditions of farms and farms where these soils are widespread. Key words: soda and soda-sulphate saline soils, chemical melioration, sulfuric acid, alfalfa, productivity.

This utility model relates to the field of land reclamation tool processing technology, and discloses a corner-cutting and punching device for land reclamation tool production. It includes a worktable, a base fixedly connected to the top of the worktable, a hydraulic rod fixedly connected to the top of the worktable, a stamping plate fixedly connected to the end of the hydraulic rod, a shearing assembly installed at the bottom of the stamping plate, a punching post fixedly connected to the bottom of the stamping plate, and a fixing mechanism installed on the top of the worktable. The fixing mechanism includes a driving assembly and a clamping assembly, and the driving assembly includes a fixing post. In this utility model, the mutual cooperation of structures such as a motor, threaded rod, fixing post, slider, clamping plate, positioning groove, base, limiting groove, and positioning hole ensures that the tool blank is fixed during processing, preventing displacement due to stress generated during processing, thereby improving the yield rate.

A kind of ramming device for land reclamation, including vehicle body, wheel, guide wheel support, main guide shaft, vice guide wheel, ramming plate, screw rod, the lower part of the vehicle body is fixedly connected with wheel, the side of vehicle body is fixedly connected with positioning column, the side of counterweight has positioning hole, positioning hole is adapted to positioning column, positioning hole is connected with positioning column, positioning column is inserted into the inside of positioning hole, the surface of counterweight has counterweight bolt hole, multiple groups of counterweight bolt hole are connected by bolt, the side of positioning column has bolt hole, first end counterweight bolt hole is connected with the inside thread of bolt hole by bolt, the upper part of vehicle body is fixedly connected with equipment column, the side of equipment column is fixedly connected with vice support, the lower part of vice support is fixedly connected with vehicle body.

The utility model belongs to the caisson technical field, concretely relates to a fill sea to make land caisson, including front wallboard, front wallboard is by a plurality of prefabricated curved surface formwork splicing and is composed, front wallboard presents double curvature parabolic surface shape, front wallboard support column, front wallboard support column is fixed in the side surface of rear wallboard towards front wallboard and supports and connects front wallboard, the quantity of front wallboard support column is a plurality, every prefabricated curved surface formwork is connected with a front wallboard support column, side plate, the side of front and back of side plate is connected with the edge portion of front wallboard and rear wallboard respectively flatly, the bottom end of side plate, rear wallboard, front wallboard is surrounded and is connected in the edge portion of bottom plate. Through the shape design of front wallboard, the wave impact perpendicular to front wallboard is decomposed into vertical climbing and transverse diversion, improve the anti-wave performance of caisson, avoid local vortex concentration, front wallboard is modularized and is assembled into shape by a plurality of prefabricated curved surface formwork, effectively improve construction efficiency, reduce construction difficulty.

This invention provides a deep-sea yeast strain TDC01 from Antarctica and its application in loosening soil, nourishing the soil, and promoting root growth. It belongs to the field of agricultural microbial technology. The preservation number of the yeast strain TDC01 is CGMCC No. 39165. The yeast strain TDC01 originates from deep-sea sediments below 4000 meters in the Southern Ocean of Antarctica and possesses multiple activities including phosphorus and potassium solubilization, production of growth hormones, production of cellulase-degrading enzymes, and production of pectinase. It can significantly improve soil compaction, activate soil nutrients, and promote crop root growth, thereby achieving the effects of loosening soil, nourishing the soil, and promoting root growth. It has great application prospects in the fields of soil improvement and green bio-fertilizers.

This invention discloses an intelligent assessment method for reducing rural construction land based on multi-source spatial big data, relating to the fields of land resource management and spatial information processing. The method involves collecting archival data and on-site status records of abandoned land parcels in rural areas from multiple sources, processing the discrepancies between the archival data and the status records, initially labeling the sources of deviation, and obtaining a list of inconsistencies in the abandoned land parcels. This intelligent assessment method for reducing rural construction land based on multi-source spatial big data improves the accuracy, intelligence level, and reliability of the assessment results, providing more scientific decision-making support for subsequent land remediation, land reclamation, spatial optimization, and implementation timing.

The present application relates to the technical field of land reclamation, and particularly relates to a loosening and leveling device for land reclamation and a use method thereof, which comprises a mounting platform, a loosening mechanism is mounted at the bottom of the mounting platform, the loosening mechanism comprises side plates, the side plates are fixedly installed on both sides of the mounting platform, a motor is fixedly installed on the side of the right side plate, an output shaft is rotatably installed on the inner side of the side plate, the output shaft is fixedly connected with the output end of the motor, a power shaft is rotatably installed on the inner side of the side plate, and a crankshaft is fixedly installed in the power shaft. The deep plowing shovel and the vertical digging shovel of the loosening mechanism are matched to realize double loosening of the soil, the deep plowing shovel breaks the deep layer of soil compaction by rotating, the vertical digging shovel further loosens the soil by reciprocating up and down, the loosening effect is complete, the soil compaction can be effectively broken, the soil permeability is improved, and a good foundation is provided for subsequent land use.

This invention proposes a method and related apparatus for calculating carbon emission reductions from ecological backfilling and land reclamation of coal gangue. The method includes acquiring the spatial boundaries and carbon pool boundaries of historical coal gangue ecological backfilling and land reclamation; constructing a simulation scenario based on these boundaries; simulating coal gangue treatment and untreated coal gangue within the simulation scenario based on a preset time boundary to obtain simulation data; calculating the potential carbon emission reduction from coal gangue stockpiling, the project's new carbon sink, the substitution emission reduction, and the project's activity carbon emissions based on the simulation data; and calculating the net carbon emission reduction based on the potential carbon emission reduction from coal gangue stockpiling, the project's new carbon sink, the substitution emission reduction, and the project's activity carbon emissions. This method provides a closed-loop operation encompassing scenario construction, data acquisition, multi-dimensional emission reduction calculation, and net carbon emission reduction calculation, achieving a comprehensive, accurate, and realistic assessment of net carbon emission reduction benefits.

This invention proposes a coastal mudflat siltation promoting device, comprising a base box, a rigid plate, a soft cloth, and a buoy. The base box is used for installation in an installation trench excavated on the coastal mudflat. A method for applying this device is also proposed, comprising: transporting the device to the target coastal mudflat when it is exposed at low tide; determining the device's orientation so that it extends along the coastline, ensuring that the side plate of the base box connected to one side of the rigid plate is located on the sea side; excavating the installation trench on the coastal mudflat surface, the trench depth being the same as the height of the base box; placing the device in the installation trench and fixing it so that the device is level with the coastal mudflat surface after installation; flipping up the rigid plate and filling the excavated silt into the base box through the unsealed gap between the bottom edge of the soft cloth and the top edge of the rear side plate of the base box; sealing or sewing the gap between the bottom edge of the soft cloth and the top edge of the rear side plate of the base box. This invention improves the efficiency of coastal siltation and land reclamation.

This invention discloses a method for land reclamation using dredged sludge, municipal solid waste incineration slag, and fly ash, comprising the following steps: S1: raw material pretreatment; S2: mixing the pretreated dredged sludge, slag, and fly ash with bentonite, soil stabilizer, and water to obtain three pumpable materials, namely material A, material B, and material C; S3: pumping the three materials to a designated reclamation area for underwater casting to obtain a sandwich-type seepage-proof protective structure that is wrapped from the inside out, effectively sealing pollutants inside the structure; S4: curing and inspection. This invention transforms hazardous waste fly ash into part of the land reclamation engineering material. Through the multi-layered low-permeability solidified body and the encapsulation structure, the dual effects of physical isolation and chemical stabilization completely eliminate the risk of leaching of pollutants such as heavy metals and dioxins, solving the problem of their safe disposal.

This invention relates to a method for producing liquid recycled organic planting soil by co-processing multiple sources of solid waste, belonging to the field of solid waste resource utilization and ecological environment restoration technology. Specifically, this invention provides a process for co-converting construction waste, demolition debris, engineering mud, coal gangue, and urban and rural organic solid waste to prepare liquid recycled planting soil suitable for ecological restoration. This technology can be applied to land reclamation in coal mining subsidence areas, restoration of degraded urban ecosystems, improvement of agricultural land quality, and treatment of saline-alkali land.